"We're continuing to work on the Vitality Sensor," Dunaway told Gamasutra. "As we thought about what we wanted to bring to E3, we realised we had a really packed agenda.

"We also thought about the atmosphere at E3 which is noisy and adrenaline-filled, and loud and stressful, and it just didn't seem like the best environment to introduce a product that's really about relaxing, so we decided we'd think about other venues that would be more appropriate."